Derrick-car



S. E. BARLOW.

DERRICK CAR. APPLICATEON FILED MAR. I, 1920.

Patented Aug. 31, 1920.

3 SHEEISSHEE] 1. I

S. E. BARLOW.

DERRICK CAR.

APPLICATION FILED MAR. l, 1920.

Patented Aug. 31, 1920.

3 SHEETS-SHEE1 2 S. E. BARLOW.

DERRICK CAR.

APPLICA ION FILED MAR. I, 1920.

1 35 1 ,226, at nted Aug. 31, 1920.

3 SHEETSSHEE] 3.

Ta a v ELEJEYEFIULLI.

UNITED STATES SAMUEL E. BARLOW, OF DENVER, COLORADO.

DERRICK-GAR.

Specification of Letters Patent.

: Patented Aug. 31, 1920.

Application fiIedMarch 1, 920. Serial No. 362,274. 7

To all whom it may concern:

Be it known that I, SAMUEL E. BARLQW, a citizen of the United States, residing at the city and county of Denver and State of Colorado, have invented certain new and useful Improvements in Derrick-Cars; and

I do declare the following to be a full, clear,

and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being ,had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this specification.

The object of this invention is to provide a derrick for railroad use. which is sufliciently strong and heavy to handle a plurality of rails, instead of handling only a sin gle rail at a time.

Briefly the invention comprises a heavy derrick platform adapted to be carried by an ordinary flat car, said platform being equipped with an engine, a boom, suitable hoisting cables, and power-operated tongs so mounted upon the boom that swinging of said tongs when loaded will be reduced.

In order to accomplish this last, mentioned function successfully, the boom is varied somewhat in structure from the ordinary type.

In the drawings:

Figure 1 is asideelevationshowingthe f p, j r V as shown, and is controlled by means of a derrick mechanismmounted upon a 'flat'car. Fig. 2 is an end elevation ,of the power tongs, as indicatedfby arrow 2 ofiFig. 1.,

Fig. 3 is a vertical section'showijngthe structure of the derrick platform; and

Fig. 4 is across section on line"4'4 o'ff Fig. 1.

An ordinary fiat car'10 is shown, upon which is mounted the platform of the derrick. The latter comprises a horizontal bed 12, provided with cross timbers 14, to which are connected mountings 16, having journals 18, and heavy rollers 2O, which support said derrick platform andpermit the same to be moved upon the flat car." The rollers 20 are of more or less massive construction, and so built that they will not readily break or crack. They comprise shafts 21, mounted in end plates 22 by means of bolts 25. boiler plate is provided about the peripheries of said parts 22 and 24 to form the tread of said'rollers, and the interior is filled with concrete 28. grooved out at 80, as shown in Fig.4, to re- :ceive a rail 82, mounted upon the flat car 10 for the purpose of maintaining the posi tion of the derrick upon said flat car. These central castings 24 are also groovedto acsaid journal 18, end plates 22 and central castings 24, which are connected with said Soft The casting 24' is commodate a cable 34, passing thereabout, and over pulleys 36 on the derrick platform, and thence to a drum38, driven by the engine 40. -In this manner the cable 34 and drum 38 serve as means to move the derrick platform along the fiat car and, if necessary, from one car to another. At the same time these parts also constitute a brake for the derrick platform.

Mounted upon the end of the "derrick platform, opposite the engine 40, is a framework 42 and a boom 44, which is pivoted "at 46 to a block on the bottom of a vertical post 48, pivoted at 50 in the topbar of the framework 42 andat52 in'the derrick platform 12. The post 48 carries a bull wheel 54, which turns upon a bearing 56 in the platform 12 and is driven by means of a chain 58 by a small engine 60 I The outer end 62 of the boom 44 is ofl's et,

link 64 and pulleys 66, operated through the mediumo'f a cable 68, drivenbya drum 70, connected with the engine 40. The cable '68 passes through said upright post 48 and 'is adapted to'bear upon either of the pulleys 7 2 orthe rollers 74in said post, asshown in Fig. 4. The offset portion 62 of the boom is provided with a pair of pulleys 76, over which there passes a pair of cable's'78, these cables being conducted over pulleys 80, supspaced jaws 82, mounted upon a common shaft 84, each set of jaws 82 being operated y y n r 6 entrel sd through nbl air line 88, which runs to the engineers station on the rear of the platform 12. The two pulleys 7 6 are spaced on the offset part 62 of the boom a distance greater than the distance between the jaws 82, so that the lower ends of the cables 78 converge as they approach said power tongs. By this construction swinging of the tongs when loaded is reduced. By having the outer portion 62 of the boom 4% offset from the body thereof, suflicient space is provided beyond said body tel for the projecting ends of the rails.

It is to be noted particularly that the rollers 22, constructed as herein disclosed, are sufliciently heavy to keep the derrick platform 12 securely anchored to the fiat car 10, so that unusually heavy loads of rails may be handled by the derrick.

It will be apparent from the foregoing that this derrick car is a self-propelling, rail-loading machine of large capacity. The large number of rollers and their considerable length serve to distribute the weight of the derrick car over the surface of the flat car so that the ordinary flat car, which is of relatively light construction, will be sufliciently strong to carry its load.

By using the power-operated tongs here disclosed, which comprise the spaced jaws 82 and the spaced points of support 76, the center of gravity of the load may be more easily straddled and at the same time the load may be readily steadied without having the center of gravity exactly between the jaws 82. This produces a structure which is quickly operated and capable of handling a heavy load at each operation.

The independent swinging engine 60 for the boom, enables the boom to be swung more readily and desirably than if controlled from the hoisting engine 40.

Each of the drums 81 is independently controllable so that the cables 78 may be moved separately or in unison. The jaws 82 are controlled through the air lines 88. In this way the tongs require no attendance whatever, all operations being controlled by the engineer at his station on the platform 12. Also this arrangement permits materials to be removed from slopes or where they are set at angles to the track. The tongs may be lowered with one set of jaws 82 below the other set, the lower set then being positioned about the materials. If the latter are at an angle, the boom may be swung a little by engine 60, thus throwing the free jaws around, which are lowered and positioned about the materials. The jaws are then closed and the usual hoisting operations follow.

I claim:

1. A derrick car, comprising a derrick platform and a series of long heavy rollers disposed transversely under said platform and j ournaled thereon.

2. A derrick car, comprising a derrick platform and a series of long heavy rollers disposed transversely under said platform and j ournaled thereon, said platform having an engine thereon and a driving connection between the engine and said rollers.

3. A derrick car, comprising a derrick platform and a series of long heavy rollers disposed transversely under said platform and journaled thereon, said rollers comprising axles having metal shells thereabout formingthe roller treads, the interior of said rollers being filled with concrete.

4. A derrick car, comprising a derrick platform and a series of long heavy rollers disposed transversely under said platform and journaled thereon, each of said rollers comprising an axle, end members thereon, a center casting, an outer shell forming a tread, said shell, end members and casting being secured together, and the interior of the roller filled with concrete.

5. A derrick car, comprising a derrick platform and a series of long heavy rollers disposed transversely under said platform and journaled thereon, each of said rollers comprising an axle, end members thereon, a center casting, an outer shell forming a tread, said shell, end, members and casting being secured together, and the interior of the roller filled with concrete, said center casting being grooved to receive a driving cable.

6. A derrick car, comprising a derrick platform and a series of long heavy rollers disposed transversely under said platform and journaled thereon, each of said rollers comprising an axle, end members thereon, a center casting, an outer shell forming a tread, said shell, end members and casting being secured together, and the interior of the roller filled with concrete, said center casting being grooved to travel on a rail on a flat car.

7 In combination, a flat car, and a derrick car thereon comprising a derrick platform having a series of heavy rollers positioned thereunder and journaled thereon, resting upon the flat car and having a length approaching the width of said fiat car.

8. A derrick car comprising a derrick platform, having a series of heavy rollers positioned thereunder and journaled thereon, an engine on one end thereof and a boom on the other end carrying a pair of heavy power-operated tongs.

9. A derrick car having a series of heavy rollers thereunder journaled thereon, and having at one end a boom with an offset end, said offset end carrying a pair of heavy power-operated tongs.

10. A derrick car, having a series of heavy rollers thereunder and journaled thereon, and a boom mounted on one end thereof, said 'ooom having an oflfset end andoarrying adjacent the end thereof a pair of spaced pulleys, cables passing over said pulleys and supporting the upper portions of a pair of rigidly connected power-operated tongs, said pulleys being farther apart than said upper portions of said tongs for the purpose of reducing swinging of a load carried by the 10 tongs.

In testimony whereof I affix my signature.

SAMUEL E. BARLOW. 

